2002 Nissan Pathfinder A/C & Heater Service (ONLINE REPAIR MANUALS)

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A/C & HEATER SERVICE PROCEDURES FOR 2002 Nissan Pathfinder AUTOMOBILES

Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 2002 Nissan Pathfinder cars and light trucks from 1990+

Imported Cars & Light Trucks & Vans -> 2001-02 -> Refrigerant Recovery
Vehicle: 2002 Nissan Pathfinder 3.5 V6 GAS

R-134a systems require the use of special service equipment designed specifically for R-134a systems. R-12 servicing equipment cannot be used on R-134a systems.

R-12 recovery stations cannot be used on R-134a systems. A separate recovery station must be used on R-134a systems. The refrigerants are not compatible and will contaminate the R-12 recovery station.

The use of refrigerant recovery and recycling stations allows the recovery and reuse of refrigerant after contaminants and moisture have been removed.

When using a recovery or recycling station...

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A/C & HEATER SERVICE PROCEDURES FOR 2002 Nissan Pathfinder AUTOMOBILES

Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 2002 Nissan Pathfinder cars and light trucks from 1990+

Nissan -> Component Replacement & Adjustment -> Heater Core, Replace -> Altima & Sentra -> Frontier & Xterra -> Maxima -> Quest
Vehicle: 2002 Nissan Pathfinder 3.5 V6 GAS

Altima & Sentra
  • Drain cooling system.
  • Disconnect heater hoses in engine compartment.
  • Remove cooling unit as outlined under "Evaporator Core, Replace."
  • Remove steering member as outlined under "Instrument Panel, Replace."
  • Remove heater unit and core, Figs. and .
  • Reverse procedure to install.
Frontier & Xterra
  • Drain cooling system and disconnect engine compartment heater hoses.
  • Remove cooling unit as outlined under "Evaporator Core, Replace."
  • Remove instrument panel as outlined under "Instrument Panel, Replace.".
  • ...

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A/C & HEATER SERVICE PROCEDURES FOR 2002 Nissan Pathfinder AUTOMOBILES

Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 2002 Nissan Pathfinder cars and light trucks from 1990+

Electrical Symbol & Wire Color Code Identification -> Electrical Symbol Identification -> Imported Vehicles
Vehicle: 2002 Nissan Pathfinder 3.5 V6 GAS

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A/C & HEATER SERVICE PROCEDURES FOR 2002 Nissan Pathfinder AUTOMOBILES

Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 2002 Nissan Pathfinder cars and light trucks from 1990+

Nissan -> Automatic Temperature Control System Diagnosis & Testing -> Component Diagnosis & Testing -> Air Conditioning Switch -> Air Mix Door Motor -> Ambient Sensor -> Automatic Amplifier -> Blower Motor -> Blower Motor Resistors -> Engine Coolant Ambient Temperature Sensor -> Fan Control Amplifier -> Fan Switches -> In-Vehicle Sensor -> Intake Door Motor -> Intake Sensor -> Maxima & Pathfinder -> Pathfinder -> Pressure Switches -> Quest -> Refrigerant Pressure Sensor -> Relays -> Sunload Sensor
Vehicle: 2002 Nissan Pathfinder 3.5 V6 GAS

Components described may be found in both manual air conditioning and automatic temperature control systems. Refer to appropriate wiring diagram for additional information.

Automatic Amplifier

Pathfinder
  • Turn ignition switch to On position.
  • Measure power supply voltage between automatic amplifier terminals Nos. 26, 27, 33 and body ground.
  • Measurement should be approximately 12 volts.
  • Turn ignition switch to OFF position.
  • Inspect for ground circuit continuity between automatic amplifier terminals Nos. 32 and body gr...

CLICK HERE TO GET FULL ACCESS TO 2002 Nissan Pathfinder A/C & HEATER SERVICE PROCEDURES

A/C & HEATER SERVICE PROCEDURES FOR 2002 Nissan Pathfinder AUTOMOBILES

Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 2002 Nissan Pathfinder cars and light trucks from 1990+

Nissan -> Automatic Temperature Control System Diagnosis & Testing -> Description -> Air Mix Door Motor -> Ambient Temperature Sensor -> Aspirator -> Automatic Amplifier -> Engine Coolant Ambient Temperature Sensor -> Fan Control Amplifier -> Front Blower Speed Control Module -> In-Vehicle Sensor -> Intake Door Motor -> Intake Temperature Sensor -> Maxima -> Maxima & Pathfinder -> Mode Door Motor -> Pathfinder -> Potentiometer Temperature Control (PTC) -> Quest -> Sunload Sensor -> System Components
Vehicle: 2002 Nissan Pathfinder 3.5 V6 GAS

System Components

Refer to Figs. and for system component input and output controls.

Automatic Amplifier

The automatic amplified has a built-in microcomputer which processes information sent from various sensor need for air conditioner operating. The air mix door motor, mode door motor, intake door motor, blower motor and compressor are then controlled. The auto amplified is unitized with control mechanisms. Signals from various switches and Potentiometer Temperature Control (PTC) are directly entered into the auto amplified. Self-diagnostic functions are also...

CLICK HERE TO GET FULL ACCESS TO 2002 Nissan Pathfinder A/C & HEATER SERVICE PROCEDURES

A/C & HEATER SERVICE PROCEDURES FOR 2002 Nissan Pathfinder AUTOMOBILES

Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 2002 Nissan Pathfinder cars and light trucks from 1990+

Imported Cars & Light Trucks & Vans -> 2001-02 -> Pressure Gauge Indication
Vehicle: 2002 Nissan Pathfinder 3.5 V6 GAS

...

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